private void Close_Click(object sender, EventArgs e)
        {
            if (Connected && String.Equals(OpMode, "Remote수동"))
            {
                using (var form = new FormExitSetupConfirm())
                {
                    form.StartPosition = FormStartPosition.CenterParent;
                    form.ShowDialog();

                    if (form.ButtonAction == "confirm")
                    {
                        OpModeChangeButtonNum = 0; /* set local */
                        OpModeButtonClicked?.Invoke(this, e);

                        Close();
                    }
                    else if (form.ButtonAction == "cancel")
                    {
                        /* do nothing */
                    }
                }
            }
            else
            {
                Close();
            }
        }
        private void OpModeChange_Click(object sender, EventArgs e)
        {
            if (sender is BunifuFlatButton bt)
            {
                OpModeChangeButtonNum = Int32.Parse(bt.Tag.ToString());

                OpModeButtonClicked?.Invoke(this, e);
            }
        }